Working on Competition Editor.
Merge branch 'master' into irjudson-competition_editor

Conflicts:
	codalab/apps/web/urls/competitions.py
	codalab/apps/web/views.py
Missed merge conflict.
editor progress.
New example
Updating to include datasets.
Updates for editing
Example program
clean up edit

also ignore build files/directories.
Working on datasets
example datasets
Merge branch 'master' into irjudson-competition_editor

Conflicts:
	codalab/apps/api/views.py
	codalab/apps/web/models.py
	codalab/apps/web/templates/web/my/index.html
	codalab/apps/web/tests.py
	codalab/apps/web/urls/competitions.py
	codalab/apps/web/views.py
Fixes after merge with master
Exposing phase data

Now working
new html

for data page.
Improve logic to load ajax-fetched content in competition details tab on page load or refresh
updates for competition datasets
Add sorting by metric to the leaderboard to fix #124
Forgot codalab.css in previous commit and fix total column span of leaderboard.
Break up supervisord config